CN215581676U - Anti-disturbance people collecting sound gathering sound system used in school playground - Google Patents
Anti-disturbance people collecting sound gathering sound system used in school playground Download PDFInfo
- Publication number
- CN215581676U CN215581676U CN202121501122.0U CN202121501122U CN215581676U CN 215581676 U CN215581676 U CN 215581676U CN 202121501122 U CN202121501122 U CN 202121501122U CN 215581676 U CN215581676 U CN 215581676U
- Authority
- CN
- China
- Prior art keywords
- sound
- shell
- loudspeaker
- high pitch
- school
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 15
- 241001503991 Consolida Species 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Images
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a sound gathering and sound gathering sound box for preventing disturbance to people used in a school playground, which comprises a shell, a loudspeaker, a protective cavity shell and a protective mesh surface, wherein the loudspeaker is detachably arranged at the center of the shell through the protective cavity shell, a controller is also arranged in the protective cavity shell, and the controller is in signal connection with a mid-bass loudspeaker and a high-pitch loudspeaker. The utility model has simple and compact structure and low cost, utilizes the reflection focusing principle of sound waves to radiate sound waves of the loudspeaker to the front, perfectly realizes the diffraction control of the sound waves by controlling the sound energy at the back to be radiated to the sound energy outside the school, solves the problem that the sound energy behind the sound equipment controls the sound energy of the residential areas outside the school, and further solves the problem that the broadcasting sound of the playground in the school interferes with the residents nearby outside the school.
Description
Technical Field
The utility model belongs to the technical field of broadcasting equipment, and particularly relates to a sound gathering and sound gathering sound system for preventing disturbance of people in a school playground.
Background
At present, most of broadcasting sound boxes used in school campus playgrounds are sound post type sound boxes, the sound boxes are wide in horizontal direction, are suitable for people to broadcast contents, are low in cost and are divided into an active type and a constant pressure type. Due to the wide horizontal directivity of the sound column, the sound energy radiated right in front can be diffracted to the rear of the sound column (the same characteristic is also the same characteristic in the conventional loudspeaker box). The sound pressure drop between the front and the back is about 2-5 dB. When the school playground is fixedly installed, the school playground is basically hung on a lamp post or an enclosing wall on the playground, the broadcasting sound from the playground can be heard in a residential area or a high-rise building near the playground, the interference of residents to the broadcasting sound is also often complained to a school party, the broadcasting sound from the playground is called as 'noise', and the school party is not free from the interference phenomenon caused by the fact that a playground broadcasting sound post or a sound box on the playground is encircled outside the school area.
Therefore, for the sound reinforcement equipment of the school playground, a sound reinforcement audio equipment with strong directivity, reduced sound wave diffraction and large front-back sound pressure difference is developed, and the sound reinforcement audio equipment is the key for solving the problem of the interference of the school playground broadcasting outside the school.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sound gathering sound system for preventing disturbance to people in school playground.
The utility model is realized by the following technical scheme: including the casing with set up speaker, protection chamber shell and the protection wire side in the casing, the speaker includes well woofer, high pitch loudspeaker, well woofer sets up in the both ends of protection chamber shell, high pitch loudspeaker sets up in the middle part of protection chamber shell, protection chamber shell detachably sets up in the center department of casing to fix well woofer, high pitch loudspeaker on the casing, still be equipped with the controller in the protection chamber shell, well woofer, high pitch loudspeaker are in the controller signal connection.
Further, the protection chamber shell set up and be the type structure of doglegging, the both ends of protection chamber shell are well bass installation cavity respectively, and the middle part is the high pitch installation cavity, and the bellying of protection chamber shell is high pitch waveguide bugle, well bass installation cavity, high pitch waveguide bugle set up as integrated into one piece structure.
Furthermore, the shell is a double-layer vacuum shell with a hemispherical structure.
The utility model has the beneficial effects that:
1. the utility model has simple and compact structure and low cost, and solves the interference of broadcasting sound of the stadium in the school to residents nearby outside the school by controlling the sound energy radiated by the sound energy behind the school. The sound wave of the loudspeaker is radiated forwards by utilizing the reflection focusing principle of the sound wave, the sound wave behind the whole sounding body is shielded by the vacuum arc-shaped shell, the sound energy is radiated only forwards, the diffraction of the sound wave is reduced, and the sound wave is enabled to generate an acoustic state that the front sound energy is large and the rear sound energy is attenuated rapidly;
2. the voice control system can be directly connected with a traditional campus broadcasting constant-voltage transmission system, can realize the range of 15-30dB (only 2-5dB of a traditional sound column) by actually measuring the forward sound energy difference, perfectly realize the diffraction control of sound waves, solve the problem of sound energy control of sound energy behind a sound box to residents outside the campus, have beautiful appearance, mainly solve the problem of disturbing residents outside the campus of a campus broadcasting sound box, improve the uniformity of sound in the campus playground, and simultaneously solve the influence outside the campus under the condition of beautiful listening. The two-frequency-division disturbing sound-gathering sound is a school party disturbing residents for a long time, and the law treasure and the good news which disturb residents nearby are solved instantly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram illustrating a split analysis according to the present invention;
fig. 3 is a reference view illustrating a wall-mounted use state of the present invention;
FIG. 4 is a reference view of the stand-type usage of the present invention;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
reference numbers in the figures: the loudspeaker comprises a shell 1, a protective cavity shell 2, a midbass mounting cavity 3, a treble mounting cavity 4, a treble waveguide horn 5, a midbass loudspeaker 6, a treble loudspeaker 7, a controller 8, a frequency divider 9, an audio frequency converter 10, a protective mesh surface 11 and a support 12.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
The anti-interference people collecting sound gathering sound used in the school playground shown in fig. 1-5 comprises a shell 1, a loudspeaker, a protection cavity shell 2 and a protection mesh surface 11, wherein the loudspeaker, the protection cavity shell 2 and the protection mesh surface 11 are arranged in the shell 1, the loudspeaker comprises a medium-low loudspeaker 6 and a high pitch loudspeaker 7, the medium-low loudspeaker 6 is arranged at two ends of the protection cavity shell 2, the high pitch loudspeaker 7 is arranged in the middle of the protection cavity shell 2, the protection cavity shell 2 is detachably arranged at the center of the shell 1, the medium-low loudspeaker 6 and the high pitch loudspeaker 7 are fixed on the shell 1, a controller 8 is further arranged in the protection cavity shell 2, and the controller 8 is in signal connection with the medium-low loudspeaker 6 and the high pitch loudspeaker 7.
The protection cavity shell 2 is arranged to be of a convex structure, the two ends of the protection cavity shell 2 are respectively provided with a medium-low pitch installation cavity 3, the middle of the protection cavity shell is provided with a high pitch installation cavity 4, and the protruding part of the protection cavity shell 2 is provided with a high pitch waveguide horn 5.
The middle and low tone installation chamber 3, the high tone installation chamber 4 and the high tone waveguide horn 5 are arranged in an integrated structure.
The middle and low sound installation cavity 3 is provided with a connector which is fixedly connected with the shell 1, the distance from the arc top reflecting surface of the shell 1 is at least 10 mm, and the middle and low sound installation cavity 3 is a closed cavity. The distance between the vibrating diaphragms of the medium and low frequency loudspeakers 6 is radiated towards the inner arc top direction of the shell 1, so that medium and low frequencies are reflected in the shell 1 to form sound focusing, sound waves and light waves have similar reflection effects, and the tone quality is improved.
Treble waveguide bugle 5 set up and be tubaeform, waveguide bugle corresponds the setting with tweeter 7's strong directional, controls tweeter's horizontal directional and vertical direction better, controls the diffraction of high frequency, decompresses the control through treble waveguide bugle 5 to the high frequency sound wave, can let the high frequency sound wave radiate to appointed region more accurately, less production diffraction.
The controller 8 is arranged behind the high pitch loudspeaker 7, the controller 8 comprises a frequency divider 9 and an audio frequency converter 10 which are integrated on the circuit board or are respectively and independently arranged, the frequency divider 9 and the audio frequency converter 10 are in signal connection with the low pitch loudspeaker 6 and the high pitch loudspeaker 7, and the audio frequency converter 10 plays a role in reducing voltage during constant voltage power amplifier transmission.
The high pitch loudspeaker 7 is a compression type high pitch driver. Because the sound high pitch reflected by the shell 1 is attenuated and forms comb waves, the tone and the frequency response width are influenced, and the compression type high pitch driver can effectively make up the deficiency of medium and high frequencies, so that the tone is more beautiful, and the bandwidth is also expanded.
The shell 1 is a double-layer vacuum shell and is provided with a hemispherical structure. Because the sound wave can not be propagated in the vacuum state, the shell 1 adopts the arc reflection shielding shell of vacuum type, can control the sound transmission that the shell 1 produced when the loudspeaker is producing sound to the interior shell 1 more effectively, control the transmission of loudspeaker to minimum, let it reflect the sound energy along the arc wall in the shell 1, make it only radiate the sound energy forward, the rear reduces the production of sound energy, reduce the sound transmission and the resonance condition that appear, thereby stop traditional aluminum hull or wooden audio amplifier and sound column and have the condition of sound transmission and resonance.
Further, the housing 1 is a vacuum arc reflective shielding housing made of a material by die casting and vacuumizing a double-layer mold.
As shown in fig. 5, as an improvement of the present invention, the housing 1 is a double-layer vacuum housing, and the cross section of the housing 1 is an oval structure, so as to reduce the sound transmission and resonance, thereby avoiding the sound transmission and resonance of the traditional aluminum housing or wooden sound box and sound column.
Further, the cross section of the shell 1 is in a circular or oval structure.
The protective net surface 11 is a metal small-hole sound-transmitting waterproof net.
Claims (10)
1. The utility model provides a prevent disturbing residents and close up sound concentration sound that school playground used, includes casing (1), and sets up speaker, protection chamber shell (2) and protection wire side (11) in casing (1), its characterized in that: the loudspeaker include well woofer (6), high pitch loudspeaker (7), well woofer (6) set up in the both ends of protection chamber shell (2), high pitch loudspeaker (7) set up in the middle part of protection chamber shell (2), protection chamber shell (2) detachably sets up in the center department of casing (1) to fix well woofer (6), high pitch loudspeaker (7) on casing (1), still be equipped with controller (8) in protection chamber shell (2), well woofer (6), high pitch loudspeaker (7) are in controller (8) signal connection.
2. The people-gathering sound system for a school playground as claimed in claim 1, wherein: protection chamber shell (2) set up and be the convex character form structure, the both ends of protection chamber shell (2) are well bass installation cavity (3) respectively, the middle part is treble installation cavity (4), the bellying of protection chamber shell (2) is treble waveguide bugle (5).
3. The people-gathering sound prevention system for a school playground of claim 2, wherein: the middle and low pitch installation cavity (3), the high pitch installation cavity (4) and the high pitch waveguide horn (5) are arranged in an integrated structure.
4. The people-gathering sound-collecting sound system for use in a school playground according to claim 2 or 3, wherein: the middle and low sound installation cavity (3) is provided with a connector which is fixedly connected with the shell (1), the distance from the arc top reflecting surface of the shell (1) is at least 10 mm, and the middle and low sound installation cavity (3) is a closed cavity.
5. The people-gathering sound-collecting sound system for use in a school playground according to claim 2 or 3, wherein: the high pitch waveguide horn (5) is arranged in a horn shape, and the waveguide horn is arranged corresponding to the strong direction of the high pitch loudspeaker (7).
6. The people-gathering sound system for a school playground as claimed in claim 1, wherein: the controller (8) is arranged at the rear part of the high pitch loudspeaker (7), the controller (8) comprises a frequency divider (9) and an audio frequency converter (10), the frequency divider (9) and the audio frequency converter (10) are integrated on the circuit board or are respectively and independently arranged, and the frequency divider (9) and the audio frequency converter (10) are in signal connection with the low pitch loudspeaker (6) and the high pitch loudspeaker (7).
7. The people-gathering sound-collecting sound system for use in a school playground according to claim 1 or 6, wherein: the high pitch loudspeaker (7) is a compression type high pitch driver.
8. The people-gathering sound system for a school playground as claimed in claim 1, wherein: the shell (1) is a double-layer vacuum shell and is provided with a hemispherical structure.
9. The people-gathering sound system for a school playground as claimed in claim 1, wherein: the protective net surface (11) is a metal small-hole sound-transmitting waterproof net.
10. The people-gathering sound system for a school playground as claimed in claim 1, wherein: the shell (1) is a vacuum type arc-shaped reflection shielding shell which is made of materials through die casting and vacuumizing of a double-layer model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501122.0U CN215581676U (en) | 2021-07-02 | 2021-07-02 | Anti-disturbance people collecting sound gathering sound system used in school playground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501122.0U CN215581676U (en) | 2021-07-02 | 2021-07-02 | Anti-disturbance people collecting sound gathering sound system used in school playground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215581676U true CN215581676U (en) | 2022-01-18 |
Family
ID=79823010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121501122.0U Active CN215581676U (en) | 2021-07-02 | 2021-07-02 | Anti-disturbance people collecting sound gathering sound system used in school playground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215581676U (en) |
-
2021
- 2021-07-02 CN CN202121501122.0U patent/CN215581676U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4593784A (en) | Loudspeaker enclosure | |
| US4134471A (en) | Narrow angle cylindrical wave full range loudspeaker system | |
| CN201138867Y (en) | Active acoustics in linear array | |
| CN204168461U (en) | Loud speaker | |
| CN210112268U (en) | Loudspeaker device | |
| CN215581676U (en) | Anti-disturbance people collecting sound gathering sound system used in school playground | |
| CN209823946U (en) | Acoustic sound gathering sound box with high-frequency reflection cone and low-frequency phase-reversing hole structure | |
| CN211909132U (en) | Double 12-inch active four-frequency-division linear array sound box | |
| JP3992974B2 (en) | Speaker device | |
| CN115150709A (en) | Linear band-pass full-band sound box with function of offsetting redundant bass at rear | |
| CN2393285Y (en) | Ceiling type loudspeaker box | |
| CN202025524U (en) | Digital sound emitting device of upright piano | |
| EP3562173B1 (en) | Full acoustic horn and method for producing same | |
| CN214851790U (en) | Corner sound box for KTV circular index models | |
| CN109040872B (en) | Ceiling loudspeaker box | |
| CN218941326U (en) | Linear array loudspeaker system of portable loudspeaker box | |
| CN209949387U (en) | Sound box enabling sound to be transmitted farther | |
| CN212909991U (en) | Linear array three-frequency-division sound box | |
| CN210629670U (en) | Sound box and flat-panel television | |
| CN210143106U (en) | Coaxial linear array vehicle-mounted strip-shaped sound box | |
| CN220858319U (en) | Teaching is with multi-functional intelligent stereo set | |
| CN202334861U (en) | Speaker without box body | |
| CN218630413U (en) | Intelligent glasses leg and intelligent glasses | |
| CN213280078U (en) | Single loudspeaker device | |
| CN216752072U (en) | Linear array sound box with coaxial loudspeaker and high-pitch horn combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Floor 1-6, Building 1, Guangdong Tianpu Electrical Appliance Co., Ltd., No. 19 Chuangxing 6th Road, High tech Industrial Development Zone, Henghe Street, Qingcheng District, Qingyuan City, Guangdong Province, 511500 Patentee after: Guangdong Tianpu Technology Group Co.,Ltd. Country or region after: China Address before: 510000 No.8, Jintian Road, Jintian Industrial Zone, Huadong Town, Huadu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU TIANPU ELECTRICAL EQUIPMENT Co.,Ltd. Country or region before: China |